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GPSDO Standard Keeps A Low Profile

Described as the smallest Global Positioning System Disciplined Oscillator (GPSDO) frequency standard available, the FireFly module also promises very low power consumption and long-term performance similar to atomic frequency standards. The module consumes 1.25 cubic inches of space and provides Stratum-1 long-term performance of better than 10 parts per trillion, averaged over 24 hours when locked to GPS. It generates both an OCXO-driven 1PPS output that is phase-synchronized to better than 100 ns to UTC, and a synchronized +12-dBm, 10-MHz sine wave output. Other features include remote monitoring through the module's RS-232 port via industry-standard SCPI commands and a power consumption of 1.4W typical. Price starts at $495 each/100. JACKSON LABS TECHNOLOGIES INC., Campbell, CA. (408) 596-0600.